Bushing for railway screw-spikes.



PATENTED FEB. 12, 1907.

A. STUGKI. BUSHING FOR RAILWAY SCREW SPIKES.

APPLIOATION FILED FEB. 13, 1906.

A f sm WITNESSES.

- power in the wood, are'likely not to hold the -count of its UNITED'sTArns PATENT @FFIGE. .ARN OLD STUCKI, OF ALLEGHENY, PENNSYLVANIA.

USHING FOR RAILWAY SCREW-SPIKES.

Specification of Letters Patent. Application filed February 13. 1900.Serial N 7 300.937.

No. 843,713. Patented-Feb. 12, 1807.

T 0 all whom it may concern.-

Be it known that I, ARNOLD STUCKI, a resident of Allegheny, in thecounty of Allcl gheny and State of Pennsylvania, have iiil vented a newand useful Improvement in Bushings for Railway Screw-Spikes; and I dohereby declare the following to be a. full, clear, an exact descriptionthereof.

This invention relates to a sleeve or bushinserted in railwa cross tiesfor rel l is a similar view showing a modification. and l Fig. 3 is :iplan view of the sleeve or bushing.

In the drawings the rail is shown at 1 pro vided with the usualbase-flanges 2 and resting on a tie-plate 3 ol the usual construction.The tie 4 will have 5, provided at its upper end with a countersink 6,in which opening will be driven the sleeve or bushing 7. Said sleeve isthreaded ing to be internally, as at 8, for receiving the screwceiving ascrew-spike. T 1c object, gencrspikc 9. I v ally stated, is to provleaslevide of this char- The sleeve 7 is a solid metal sleeve having acterwhich will prolong the life of the tie, which .is cheap to manufacture,and which will securely hold the rail-fastening moans.

Ordinary railway-spikes when driven inwoodcii ties possess only a smallholding a closed bottom 10, which rests upon the bottom of the hole inthe 'tie and at its upper end is provided with a flange 11,which tits inthe countersink 6 and rests upon the shoulder formed by the countersink.The hole in the tie should be accurately bored, so that the distancebetween its bottom and the shoulder formed by the countersink will beexactly equal to the distance from the lower eil e of the flange 11 tothe bottom 10 of the bus lin track exactly to gage, break the fiber ofthe Wood, and also permit water to enter the hole formed by the spike.Asa consequence, the tie is rapidly destroyed, both chemically, due

to the action of the water, and mechanically, or sleeve. As aconsequence, the sleeve wi due to the pounding of the rail thereon onacbe firmly sup orted on the sol d wood of the count of tie slip of thespike in the wood. he, and the i aiige 1]. forms a good seat for Resorthas been inade to tie-plugs and spikethe tic-plate 3, so that the lattercannot wear bushings for the purpose of overcomin the into the wood anddestroy the tie mechanicevils of the track being out of gage an theallv. water entering the wood but these only par- The sleeve may besmooth on its exterior, tially prevent the evil. Screw-receivin as shownin Fig. l, or may be provided with bushings or sleeves have also beenrcsorte ribs or threads in any suitable way, said ribs to; but, as faras I know, these comprise either being annular, as shown at 12, Fig. 2,either a sleeve formed from a spiral wire or or arranged s irally and ofany desired pitch. threaded or unthrcaded wooden bushing. The hole in t10 tie should be slightly smaller The first-named is too expensive tomake and than the sleeve, so that the latter will have a to apply, thesecond does not possess th tight fit thereiii. It can be driven by meansrequisite strength, and the third is not held Of' a sledge and in in thewooden tie with sufficient firmness to press the fibers of the wood. butnot break the do much good. same. Consequently the iiber has a strong Myinvention is intended to provide a dc-. frictional grip on the sleeve.and on account vice of the above kind which is citicient, of thecomparatively large diameter thereof chea to construct, and which willovercome this will be sutlicient to prevent the sleeve all 0 thedisadvantages above named. The from working u and down. inventionconsists of a metal sleeve threaded The sleeve s iown is simpleinternally for receiving the screw-spike and construction, is verystrong, having at its upper end a hang, said sleeve means of a sledge,and has a strong frictional being adapted to be driven into acountergrip in the wood. It possesses many advansunk hole formed in thetie and to rest on the I tages over the ordinary method of i'astenin andcheap of can be driven by bottom of the hole as well as onthe shoulderrailway-rails, .to 'wit: It increases the life 0 formed by thecountersink, thus giving a the tie due tothe fact that the fibers of thefirm support to the mililate and, on acwood are not broken and do notdisintegrate comparativel y large diaiii'eter, no matter how often therails rnav be taken exerting a strong frictional grip in the wood. upand re-laid, There is practica ly no wear In the acconi )anyingdrawings, Figure 1 is i on account of relaying rails or readiusting avertical section through a rail and tie, showing my device appliedthereto. Fig. 2

the sleeve takes care of all 0 the wear that driving will slightlycornbored into it an opening .I to the track. The metal screw-stpikeworking in would otherwise occur. The tie will be firml held in contactwith the rail-base instea of having the usual lay due to the s ike nothaving suflicient rictional hold in the wood. I Its resistance againstpulling out of the tie is largely due to its large outerbearing-surface, to the neat fit which it can have in its hole, thus notmaking it necessary to break the fiber, and to the ribs or threadsformed on its outer surface. The sleeve forms-a support for therail-plate',-so that the latter will not wear away the wood and destnoythe tie mechanically. If the tie is treated wi h a preservative or ifnot so treatthe sleeve by reason of its neat fit in the wood and theflange at 1ts upper end will prevent the water from getting down intothe hole, and thus prevent the rotting of thetie or the leeching out ofthe preservative, ii. one is used, and will thus prevent destruction ofthe tie'chemicall-y. By means of this sleeve the'rails eaxtbe moreeasily laid to exact gage, since the holes-for the sleeve can be boredexactly to gage.

What I claim is- 1. A screw bushing or sleeve for railway cross-tiescomprising an internally-threaded solid metal sleeve having an outersurface adapting it to be driven into a hole in the tie andprovided atits upper end with a flange for; supporting therai -plate.

21A screw bushing or sleeve for railway cross-ties comprising aninternally-threaded solid; metal sleeve having an outer surface adaptingit to be driven into a hole in the tie and having a closed lower end forresting on the bottom of the hole, audits upper end having a flange forsupporting the rail-plate. I 3. A railway-track structure comprising awooden cross-tie provided with a holecountersunk at its top and a metalbushing or sleeve internally threaded and fitting in said hole with itslower end resting on the bottom of the hole, and having a flange fittingin the countersink and resting on the shoulder formed thereby.

4. A railway-track structure comprising a wooden cross-tie provided witha hole countersunk at its top and a metal bushing or sleeve internallythreaded and fitting in said hole with its lower end resting on thebottom of the hole, having threads or projections on its outside toincreasc'friction against pulling, and having a flange fitting in thecountersink and resting on the shoulder formed thereby.

5. A screw bushing or sleeve for railway cross-ties comprising aninternally-threaded solid metal sleeve adapted-tdjiltedr'iven into ahole in the tie and provided on its outer surface with projections forincreasing friction against vertical movement.

In testimony whereof I, the said ARNOLD STUCKI, have hereunto set myhand.

ARNOLD STUOKL Witnesses Ronnu'r G. TOTTEN, EDNA L. WATKINS.

